Subject: Re: power management and related concerns
To: Garrett D'Amore <firstname.lastname@example.org>
From: Jason Thorpe <email@example.com>
Date: 07/05/2006 11:24:57
On Jun 30, 2006, at 5:28 PM, Garrett D'Amore wrote:
> 1) there doesn't seem a clear way to indicate powerfail for a low
> battery condition in sysmon. Should I just be sending init some
You should add this capability to sysmon :-) powerd(8) can then
handle the message.
> 3) Currently it isn't clear whether you should be registering with
> sysmon, or something else for things like battery status, etc. It
> be really, really good if drivers didn't have to do _both_ of these
> things. Can we maybe have a sysmon APM compatibility layer? (I guess
> there are some userland apps that "know" about APM. Bletch.)
BACKWARDS! sysmon is where things should be going. The whole idea
is that sysmon is a generic system that has back-ends for APM, ACPI,
etc. Right now, sysmon is just a skeleton, but it has some pieces
there that e.g. ACPI is using now.
> 4) We need some userland tools to talk to sysmon in base, I think.
> (E.g. to query batteries, etc.)
> 5) In many respects, sysmon looks like a good start. I've coded a
> power management driver for the Ultrabook IIi (okay, it was mostly a
> port from Solaris), and it basically works for things like lid switch,
> AC power cord un/plug, and power button.
Yah, that was the whole idea :-)